5" 125mm - Metal Ducting Inline Silencer Attenuator - 600mm Inline Fan Kits these units will give maximum

these units will give maximum performance even against pressures caused by long lengths of ducting and resistance by grilles

as it can be installed indoors

Brand: Swiftair Timer Model: (No Plug) - Live

Wall In line Void/Loft Mounted Heat Recovery Unit OnlyUnit label airflow is incorrect unit does 200m3/hr on full speedPlease note all airflows are at free air (No pressure) & Without filters

5" 125mm - Metal Ducting Inline Silencer Attenuator - 600mm Inline Fan Kits these units will give maximumSilenced Fan Silencer Use a Silenced Fan Silencer to absorb the unwanted noise; two silencers can be used in series where unwanted noise is a particular problem. With the higher flow rates of our professional fans, air noise can become a problem. Air moving through ducts creates noise. The faster the air, the more noise is created. If noise is a problem, connect a Silenced Air to your system. A Silenced Air is most effective if positioned directly